JP6471919B2 - User equipment (UE), program, computer-readable recording medium, method and apparatus - Google Patents

Description

  CROSS REFERENCE TO RELATED APPLICATIONS This application claims priority to US patent application Ser. No. 14/316188, filed Jun. 26, 2014, entitled “DRX OPERATION FOR UL / DL RECONFIguration”, which is 2013 Claiming the priority of US Provisional Patent Application No. 61 / 879,014 entitled “Advanced Wireless Communications Systems and Techniques” filed on September 17, 2003, the entire disclosures of which are hereby incorporated by reference in their entirety. Incorporated herein. FIELD Embodiments of the present invention generally relate to the technical field of discontinuous reception (DRX) functionality in radio frames.

  The background description provided herein is for the purpose of generally presenting the context of the disclosure. To the extent described in this Background section, the present inventors' research and the multiple aspects of the description that would not be recognized as prior art at the time of filing are prior art to this disclosure. It is not clearly or implicitly accepted. Unless otherwise indicated herein, the approaches described in this section are not prior art to the claims of this disclosure and are not admitted to be prior art by inclusion in this section. Absent.

  The DRX function can be used to conserve battery power in user equipment (UE) of a wireless network by omitting reception of multiple signals on a physical downlink control channel (PDCCH) or enhanced PDCCH (ePDCCH). Specifically, the UE may monitor one or more radio subframes of a radio frame in the radio network for a PDCCH / ePDCCH signal. However, in multiple uplink (UL) subframes of a radio frame, the UE may not monitor for PDCCH / ePDCCH signals. In addition, the DRX function may include one or more timers, and if these timers are expired or not running, the UE may not monitor for PDCCH / ePDCCH signals.

Embodiments will be readily understood by the following detailed description in conjunction with the accompanying drawings. To facilitate this description, like reference numerals designate like structural elements. The embodiments are shown by way of example and are not limited to the figures of the accompanying drawings.
1 schematically illustrates an example of a network comprising a UE and an eNodeB (eNB), according to various embodiments. FIG. 4 illustrates examples of multiple options for monitoring different uplink / downlink (UL / DL) subframe configurations according to various embodiments. FIG. FIG. 4 illustrates an exemplary process for monitoring multiple PDCCH transmissions in various UL / DL subframe configurations, in accordance with various embodiments. 1 schematically illustrates an example system that can be used to implement various embodiments described herein.

  In embodiments, an apparatus, method and storage medium are provided for identifying a plurality of subframes in a radio frame in which a UE may receive PDCCH / ePDCCH transmissions (collectively referred to herein as PDCCH transmissions). Can be explained. Specifically, the UE may receive multiple indications of multiple UL / DL subframe configurations and may identify one or more subframes in which the UE may receive PDCCH transmissions. The UE may then monitor one or more of the identified subframes and may use the DRX timer function as a reference in one or more of the identified subframes.

  In some embodiments, the UE may receive multiple conflicting UL / DL subframe configurations, such as, for example, system information block type 1 (SIB1) messages, PDCCH transmissions, or radio resource control (RRC) signaling. For example, in one of multiple UL / DL configurations, the UL subframe may be a DL or special subframe (ie, a subframe that may include a downlink pilot time slot (DwPTS)). The UE may identify which multiple subframes to use for PDCCH monitoring and DRX functions based on multiple conflicting UL / DL subframe configurations.

  In the following detailed description, reference is made to the accompanying drawings that form a part hereof. Here, like numerals designate like parts throughout and a plurality of embodiments that may be implemented are shown by way of example. It should be understood that multiple other embodiments may be used and that multiple structural or logical changes may be made without departing from the scope of the present disclosure. The following detailed description is, therefore, not to be taken in a limiting sense.

  The various operations may be described in turn as a plurality of separate actions or operations in a manner that is most useful for understanding the claimed subject matter. However, the order of description should not be construed as implying that these operations are necessarily order dependent. In particular, these operations may not be performed in the order of description. The described operations may be performed in a different order than the described embodiment. Various additional operations may be performed and / or a plurality of described operations may be omitted in a plurality of additional embodiments.

  For the purposes of this disclosure, the expression “A and / or B” means (A), (B) or (A and B). For purposes of this disclosure, the term “A, B, and / or C” refers to (A), (B), (C), (A and B), (A and C), (B and C) Or (A, B and C).

  The description uses the phrases “in an embodiment” or “in a plurality of embodiments,” which may each refer to one or more of the same or different embodiments. Further, terms such as “comprising”, “including”, “having” and the like are synonymous as used with respect to embodiments of the present disclosure.

  FIG. 1 schematically illustrates an example wireless network 100 (hereinafter “network 100”), in accordance with various embodiments. Network 100 may include a UE, such as UE 110 coupled to eNB 105. In some embodiments, the network 100 may be a third generation partnership project (3GPP) long term evolution (LTE) network access network, such as an evolved universal terrestrial radio access network (E-UTRAN). In these embodiments, the eNB 105 may be a 3GPP-defined eNodeB (also referred to as an evolved NodeB) configured to wirelessly communicate with the UE 110 using a radio protocol such as the 3GPP LTE radio protocol.

  As shown in FIG. 1, UE 110 may include a transceiver module 122, also referred to as a multi-mode transceiver chip. The transceiver module 122 may be configured to transmit and receive multiple wireless signals. Specifically, the transceiver module 122 may be coupled to one or more of the multiple antennas 125 of the UE 110 for wirelessly communicating with multiple other components of the network 100, such as, for example, an eNB 105 or other UEs. The plurality of antennas 125 may be powered by a power amplifier 130, which may be a component of the transceiver module 122 or coupled to the transceiver module 122 as shown in FIG. In general, it may generally be between the transceiver module 122 and the plurality of antennas 125. In one embodiment, power amplifier 130 may provide power for all transmissions at multiple antennas 125. In other embodiments, there may be a plurality of power amplifiers on the UE 110. The use of multiple antennas 125 enables UE 110 to use multiple transmit diversity techniques such as spatial orthogonal resource transmit diversity (SORTD), multiple-input multiple-output (MIMO), or full-dimensional MIMO (FD-MIMO). obtain.

  In certain embodiments, the transceiver module 122 may include a communication module 120, which may be referred to as a broadband module. The communication module 120 is configured to cause the plurality of antennas 125 to transmit one or more signals from the UE 110 and the plurality of antennas 125 to receive one or more signals at the UE 110. Both received receiver circuits 150 may be included. In other embodiments, the communication module 120 may be implemented in a plurality of separate chips or modules, such as, for example, one chip that includes the receive circuit 150 and another chip that includes the transmit circuit 145. In some embodiments, the plurality of signals may be a plurality of cellular signals transmitted to or received from a 3GPP eNB, such as eNB 105. In some embodiments, the UE 110 may include a processor 175 coupled to the transceiver module 122. The processor 175 may further be coupled to or include a DRX module 180 that may be configured to perform one or more of the DRX functions described in more detail below.

  Similar to UE 110, eNB 105 may include a transceiver module 135. The transceiver module 135 may be further coupled to one or more of the multiple antennas 140 of the eNB 105 for wireless communication with multiple other components of the network 100, such as the UE 110, for example. The plurality of antennas 140 may be powered by a power amplifier 160, which may be a component of the transceiver module 135, or another component of the eNB 105, as shown in FIG. It may generally be located between 135 and the plurality of antennas 140. In one embodiment, power amplifier 160 may provide power for all transmissions on multiple antennas 140. In other embodiments, there may be multiple power amplifiers on the eNB 105. Use of multiple antennas 140 may allow eNB 105 to use multiple transmit diversity techniques such as SORTD, MIMO, or FD-MIMO. In some specific embodiments, the transceiver module 135 includes one or more transmission circuits 165 configured to cause the plurality of antennas 140 to transmit one or more signals from the eNB 105, and the plurality of antennas 140 at the eNB 105. Both receive circuits 170 configured to receive signals may be included. In other embodiments, the transceiver module 135 may be replaced by a transmitter circuit 165 and a receiver circuit 170 (not shown) that are separate from each other. In some embodiments, although not shown, the transceiver module 135 may include a communication module, such as the communication module 120 that includes the receiving circuit 170 and the transmitting circuit 165.

  As described above, the DRX function may be used in a network, such as network 100, to preserve the battery life of a UE, such as UE 110. Specifically, the DRX function may hold the battery by allowing the UE to enter a low power or sleep state that does not monitor for DL signals on the PDCCH. Depending on how predictable the traffic arrival rate in the network 100 is and based on multiple quality of service (QoS) requirements associated with radio bearers in the network 100, an eNB, such as eNB 105, may have a UE in the network 100, etc. One DRX interval may be configured for use in multiple LTE systems. Note that the following description referring to a PDCCH or PDCCH signal may be further applied to an ePDCCH or ePDCCH signal. However, for ease of reference, only PDCCH will be referenced below.

  In some embodiments, the network 100 may be configured as a time division duplex (TDD) network. Specifically, in some embodiments, a radio frame may be 10 milliseconds (ms) long. The radio frame may include 10 subframes of the radio frame, each subframe being 1 ms long. A subframe of a radio frame may be designated as a UL, DL, or special subframe. The UL subframe may be a subframe designated for transmission from a UE such as UE 110 to an eNB such as eNB 105. The DL subframe may be a subframe designated for transmission from the eNB 105 to the UE 110. The special subframe may be a subframe that may carry or include DwPTS transmitted from the eNB 105 to the UE 110.

  Whether a subframe of a radio frame is designated as a UL subframe, a DL subframe, or a special subframe may be indicated by a UL / DL configuration of the radio frame. Table 1 below illustrates various UL / DL configurations that may be used in some embodiments. The multiple UL / DL configurations illustrated in Table 1 may be specifically applied to 3GPP radio frames having a frame structure 2. In other embodiments, multiple other UL / DL configurations may be used. In Table 1, “D” may indicate a DL subframe. “U” may indicate a UL subframe. “S” may indicate a special subframe.

  For multiple TDD carriers in such a TDD network, DRX operation may be based on subframes in which a PDCCH signal may be received by the UE. Specifically, the UE receives a PDCCH signal in either a DL subframe or a special subframe (ie, a subframe that may include DwPTS), collectively referred to as a PDCCH subframe for ease of reference herein. You can do it. Specifically, the UE may monitor the PDCCH only in the PDCCH subframe and may not monitor the PDCCH signal in the UL subframe. Further, the UE may monitor for PDCCH in multiple PDCCH subframes only if an active DRX related timer is running or uplink grant is pending.

  As explained below, a running DRX-related timer may only increment during multiple PDCCH subframes it is running and may not increment during UL subframes. is there. For example, a DRX related timer having a value of x in PDCCH subframe y may increment to a value x + 1 in PDCCH subframe y + 1. The values of x and y may be independent of whether there are one or more UL subframes between PDCCH subframe y and PDCCH subframe y + 1. As explained below, once the DRX timer reaches a set value, the timer may expire.

  In embodiments, there may be three DRX timers used in the TDD network 100. These timers are DRX duration timers (referred to herein as onDurationTimers), DRX inactivity timers (referred to herein as DRX-InactivityTimers), or DRX retransmission timers (referred to herein as DRX-RetransmissionTimers). May be included. The onDurationTimer may indicate the number of multiple PDCCH subframes in the radio frame that the UE 110 should monitor for PDCCH signals. For example, if multiple subframes in a radio frame are numbered 0-9, an onDurationTimer value of 2 should cause the UE 110 to monitor subframes 0 and 1 for PDCCH signals (subframes 0 and 1 (Assuming it is a PDCCH subframe).

  The DRX-Inactivity Timer may indicate the number of multiple PDCCH subframes that the UE 110 should monitor for the PDCCH signal after the first PDCCH signal is received in the radio frame.

  As a specific example, assuming that the radio frame is configured with UL / DL configuration 0, the value of onDurationTimer is 2, and the value of DRX-Inactivity Timer is 2. As seen in Table 1, subframes 0, 1, 5 and 6 may be PDCCH subframes. Subframes 2-4 and 7-9 may not be PDCCH subframes.

  Based on onDurationTimer, UE 110 may monitor subframes 0 and 1 (DL and special subframes, respectively, and thus both are PDCCH subframes) for PDCCH signals. If UE 110 does not receive a PDCCH signal in subframe 0 or 1, UE 110 may then not monitor subframes 2-9 for the PDCCH signal, eg, by entering a low power or sleep mode.

  However, if UE 110 receives a PDCCH signal in subframe 0, the UE may then remain awake beyond the value indicated by onDurationTimer, and multiple PDCCH subframes based on the value of DRX-Inactivity Timer Can be monitored. For example, based on the value of DRX-InactivityTimer (which is 2), UE 110 may monitor two additional PDCCH subframes beyond subframe 0 for the PDCCH signal. In this example, UE 110 may then monitor PDCCH subframes 0, 1 and 5 for PDCCH signals. As mentioned above, since subframes 2-4 may not be PDCCH subframes, the UE may use the DRX low power or sleep mode in subframes 2-4 for PDCCH signals, for example. May not be monitored. In addition, upon termination of DRX-InactivityTimer, the UE may enter DRX low power or sleep mode for subframes 6-9. Similarly, if UE 110 receives a PDCCH signal in subframe 1, UE 110 may then monitor PDCCH subframes 5 and 6 for PDCCH signals based on DRX-InactivityTimer, and PDCCH subframes 2-4 and 7 -Can enter DRX low power or sleep mode for 9.

  The DRX-Retransmission Timer may be associated with UE 110 monitoring for one or more scheduled DL hybrid automatic repeat request (HARQ) retransmissions. Specifically, using a DRX-Retransmission Timer, a UE 110 may use multiple PDCCH signals for PDCCH signals from the first possible instance of HARQ retransmission as long as the UE 110 or eNB 105 has a scheduled retransmission that can be scheduled. It may be configured to monitor subframes.

  In some embodiments, this semi-static allocation of multiple UL and DL subframes and multiple UL / DL configurations described above in Table 1 may not be appropriate with respect to the current traffic situation of the network 100. Thus, it has been observed that this can result in unoptimized spectral utilization. Thus, in some embodiments, a radio frame may include multiple “flexible” subframes (also referred to as FlexSF). The flexible subframe may be a subframe capable of UL or DL traffic. In some embodiments, the flexible subframe direction may be dynamically configured by an eNB such as eNB 105. Using these flexible subframes, the eNB 105 may be able to dynamically configure multiple flexible subframes to match the current traffic status of the network 100. Multiple subframes may be appropriate in an LTE network, such as a Release 12 (Rel-12) LTE network, configured to use enhanced interference mitigation and traffic adaptation (eIMTA), for example. In some embodiments, the flexible subframe may be one or more subframes 3, 4 or 6-9 of the radio frame. Specifically, in some embodiments, subframes 3, 4, and 7-9 may be either UL or DL subframes. The subframe 6 may be a special subframe or a DL subframe.

  However, it may be difficult to identify which subframe of a radio frame is a PDCCH subframe because multiple specific subframes of a radio frame may be either UL or DL subframes. unknown. When multiple UL / DL configurations are indicated by eNB 105 for UE 110, it may be particularly difficult to identify which subframe of a radio frame is a PDCCH subframe. Therefore, it may be difficult to identify when the DRX timer should be incremented or when the UE 110 should monitor for PDCCH signals. It may also be inefficient for UE 110 to monitor all PDCCHs and flexible subframes for PDCCH signals. This is because doing so can substantially reduce the battery life of the UE 110.

  In some embodiments, the three UL / DL configurations may be signaled independently by an eNB such as eNB 105 to a UE such as UE 110. First, the eNB 105 may signal the UL / DL configuration to the UE 110 in a SIB1 message, which is referred to herein as a SIB1 UL / DL configuration. The SIB1 UL / DL configuration may be applicable to multiple radio frames.

  Second, the eNB 105 may signal the UL / DL configuration to the UE 110 in a PDCCH or ePDCCH message in a first subframe of a radio frame or a subframe configured in a higher layer. For ease of reference, the UL / DL configuration signaled in the PDCCH subframe will be referred to herein as the “actual” UL / DL configuration. In some embodiments, the actual UL / DL configuration may be applicable only to radio frames in which the PDCCH subframe is a part. For example, the actual UL / DL configuration may be signaled in subframe 0 of a radio frame and applied to that radio frame.

  In other embodiments, the UL / DL configuration signal, which is then a PDCCH subframe, may be applicable to subsequent radio frames.

  Third, the eNB 105 may signal the UL / DL configuration to the UE 110 via radio resource control (RRC) signaling. This UL / DL configuration will be referred to as a “DL reference” UL / DL configuration. Similar to the SIB1 UL / DL configuration, the DL-based UL / DL configuration may be applicable to multiple radio frames. The DL-based UL / DL configuration may be generally applicable to the determination of DL HARQ timing associated with physical downlink shared channel (PDSCH) reception. In some embodiments, the DL-based UL / DL configuration may be associated with a HARQ round trip time (RTT) that may be set in k + 4 subframes, where k is the DL transmission and the DL-based UL. / Interval between UL transmissions of relevant HARQ feedback according to DL configuration.

  FIG. 2 shows the UL / DL configuration that the UE 110 should monitor for the PDCCH signal and should be used to increment the DRX timer for radio frames configured according to frame structure 2 and including flexible subframes. The four different options are illustrated. As shown in FIG. 2, according to frame structure 2, subframes 0 and 5 may be multiple DL subframes, subframe 1 may be a special subframe, and subframe 2 may be an uplink. It may be a subframe. In addition, according to frame structure 2, subframes 3, 4 and 7-9 are flexible subframes, where the plurality of subframes may be either UL or DL subframes. Finally, according to frame structure 2, subframe 6 may be either a special or a DL subframe. For ease of reference, assume that the configurations shown in FIG. 2 refer to the UL / DL configurations shown above in Table 1 for, for example, Option 2, Option 3, and Option 4. .

  As the first and simplest option (shown as option 1 in FIG. 2), the UE 110 may have multiple PDCCH subframes that are multiple PDCCH subframes in each possible UL / DL configuration that may be indicated by the SIB1 message. PDCCH monitoring and DRX timer functions can be used as a reference only for frames. As shown in FIG. 2, according to the multiple subframes marked with “X” for option 1, the multiple PDCCH subframes may be subframes 0, 1, 5, and 6. The reason why subframes 0, 1, 5 and 6 may be multiple PDCCH subframes for each possible UL / DL configuration may be seen in Table 1, where the seven shown For each UL / DL configuration, subframes 0, 1, 5 and 6 may be either DL or special subframes.

  As a second option (shown as option 2 in FIG. 2), UE 110 performs PDCCH monitoring and DRX timer functions only in multiple PDCCH subframes identified as multiple PDCCH subframes in the SIB1 UL / DL configuration. It may be used as a reference. For example, in this option, if the SIB1 UL / DL configuration is UL / DL configuration 1 of Table 1, the plurality of PDCCH subframes may be subframes 0, 1 and 4-6. Both options 1 and 2 may provide the benefit of enabling the UE 110 to be able to predict DRX conditions, due to counting multiple static DL subframes only for DRX operations. It may help to ensure that there is no mismatch between UE 110 and eNB 105. Thus, undesired data loss can be avoided.

  As a third option (shown as option 3 in FIG. 2), the UE 110 may perform PDCCH monitoring and DRX timer only in multiple PDCCH subframes that are identified as multiple PDCCH subframes in the DL-based UL / DL configuration. The function may be used as a reference. For example, in this option, if the DL-based UL / DL configuration is UL / DL configuration 2 of Table 1, the plurality of PDCCH subframes may be subframes 0, 1, 3-6, 8 and 9.

  In some embodiments, it may be seen that options 1, 2 or 3 may lead to PDCCH monitoring separate from the “PDCCH subframe” definition used for legacy DRX timers. Specifically, multiple flexible subframes may be monitored for PDCCH signals according to a common UL / DL configuration for multiple UEs, but they are counted for multiple purposes of the DRX timer at UE 110. May not be.

  As a fourth option (shown as option 4 in FIG. 2), UE 110 performs PDCCH monitoring and DRX timer functions only in multiple PDCCH subframes that are identified as multiple PDCCH subframes in an actual UL / DL configuration. It may be used as a reference. For example, in this option, if the actual UL / DL configuration is UL / DL configuration 3 of Table 1, the multiple PDCCH subframes may be subframes 0, 1 and 5-9. This option may have the benefit of keeping the number of scheduling opportunities for UE 110 constant over time, regardless of changing the transmission direction in multiple flexible subframes, so that UE battery Optimize consumption.

  In some embodiments, for multiple networks using option 4, UE 110 may miss a common downlink control information (DO) transmission for the group of UEs, which is the actual UL / DL being used. Aiming misses between active UE 110 and eNB 105 may result as to multiple UL / DL subframes in the configuration. As a result, UE 110 and eNB 105 may be out of synchronization in the DRX state and / or DRX timer, or may follow multiple different DRX patterns. In some embodiments, UE 110 may become the default option 1 as a fallback location.

  In some embodiments, multiple different UL / DL configurations may be used for multiple different DRX timers. For example, onDurationTimer and DRX-InactivityTimer are based on a different UL / DL configuration than DRX-RetransmissionTimer because DRX-RetransmissionTimer can be directly related by HARQ operation of network 100, but the other two timers are not. Good. For example, onDurationTimer and DRX-InactivityTimer can be optimized using options 1, 2, or 4. On the other hand, since the DRX-RetransmissionTimer is more closely related to HARQ retransmissions, the DL-based UL / DL configuration described for option 3 may be more appropriate for that timer.

  As seen in FIG. 2, one UL / DL configuration may indicate a PDCCH subframe in a flexible subframe, while the other of the multiple UL / DL configurations indicates a UL subframe. For example, UL / DL configuration 1 illustrated for option 2 may indicate that flexible subframe 3 is a UL subframe, whereas UL / DL configuration 2 illustrated for option 3 is a PDCCH subframe. It may be. However, by selecting one of options 1 through 4, network 100 allows one of the UL / DL configurations received by UE 110 to be out of the plurality of UL / DL configurations received by UE 110. It may be possible to make more effective use of DRX functionality and PDCCH monitoring in situations that are incompatible with one of the other.

  FIG. 3 illustrates exemplary processing that may be performed by a UE such as UE 110. Initially, UE 110 may receive multiple indications of multiple UL / DL configurations applicable at 300 to multiple subframes of a radio frame. For example, UE 110 may receive one or more indications of SIB1 UL / DL configuration, actual UL / DL configuration, or DL-based UL / DL configuration.

  Next, UE 110 may identify multiple subframes that may include multiple DL subframes and DwPTS according to one of multiple received UL / DL configurations at 305 and start a DRX timer at 310. It's okay. For example, the DRX timer may be one of the plurality of DRX timers described above. The DL subframe or the DwPTS subframe may be a PDCCH subframe as described above.

  Next, the UE 110 transmits the PDCCH or ePDCCH for transmission in multiple subframes (ie, PDCCH subframes) that may include the identified multiple DL subframes and DwPTS while the DRX timer is running at 315. Can be monitored. Further, UE 110 may increment the DRX timer only in multiple DL subframes identified in 320 and multiple subframes that may include DwPTS, as described above. That is, the DRX-related timer having a value of x in the PDCCH subframe y is a PDCCH subframe regardless of whether there is a non-PDCCH (ie, UL) subframe between the PDCCH subframe y and the PDCCH subframe y + 1. It can be incremented to the value x + 1 at y + 1. Once the DRX timer reaches the set value, the timer can expire as described above.

  Embodiments of the present disclosure may be implemented in a system using any suitable hardware and / or software to configure as desired. FIG. 4 schematically illustrates an example system 400 that can be used to implement various embodiments described herein. FIG. 4 illustrates one embodiment of one or more processors 405, a system control module 410 coupled to at least one of the processor (s) 405, a system memory 415 coupled to the system control module 410, system control. Illustrated is an example system 400 having non-volatile memory (NVM) / storage 420 coupled to module 410 and one or more communication interfaces 425 coupled to system control module 410.

  In some embodiments, system 400 may be capable of functioning as UE 110 as described herein. In other embodiments, the system 400 may be able to function as the eNB 105 as described herein. In some embodiments, the system 400 executes instructions to implement a module that is coupled to instructions and one or more computer-readable media to perform the actions described herein. One or more computer readable media (eg, system memory or NVM / storage 420) having one or more processors (eg, processor (s) 405) configured in such a manner.

  The system control module 410 for one embodiment provides any suitable interface to at least one of the processor (s) 405 and / or any suitable device or component in communication with the system control module 410. A plurality of any suitable interface controllers for providing may be included.

  The system control module 410 may include a memory control module 430 that provides an interface to the system memory 415. The memory control module 430 may be a hardware module, software module, and / or firmware module.

  System memory 415 may be used, for example, to load and store data and / or instructions for system 400. The system memory 415 for one embodiment may include any suitable volatile memory, such as, for example, a suitable dynamic random access memory (DRAM). In some embodiments, the system memory 415 may include a double data rate type 4 synchronous DRAM (DDR4 SDRAM).

  The system control module 410 for one embodiment may include one or more input / output (I / O) controllers to provide an interface to the NVM / storage 420 and the communication interface (s) 425.

  NVM / storage 420 may be used, for example, to store data and / or multiple instructions. NVM / storage 420 may include any suitable non-volatile memory, such as flash memory, and / or, for example, one or more hard disk drives (HDDs), one or more compact disk drives (CDs), and Any suitable non-volatile storage device (s) may be included, such as one or more digital versatile disc (DVD) drives.

  NVM / storage 420 may include storage resources that are a physical part of a device on which system 400 may be installed, or may not necessarily be a part of the device but accessible to it. For example, NVM / storage 420 may be accessed over a network via communication interface (s) 425.

  The communication interface (s) 425 may provide an interface for the system 400 and communicates on one or more networks and / or using other appropriate device (s). System 400 may wirelessly communicate with one or more components of a wireless network in accordance with any of one or more wireless network standards and / or protocols. In some embodiments, the communication interface (s) 425 may include the transceiver module 122 or 135.

  In one embodiment, at least one of the processor (s) 405 may be packaged with logic for one or more controllers of the system control module 410, such as the memory control module 430, for example. In one embodiment, at least one of the processor (s) 405 may be packaged together with respect to one or more controllers of the system control module 410 to form a system in package (SiP). In one embodiment, at least one of the processor (s) 405 may be integrated on the same die as the logic for one or more controllers of the system control module 410. In one embodiment, at least one of the processor (s) 405 is integrated on the same die as the logic for one or more controllers of the system control module 410 to form a system on chip (SoC). obtain.

  In some embodiments, the processor (s) 405 includes a graphics processor (GPU) (not shown), a digital signal processor (DSP) (not shown), a wireless modem (not shown), a digital camera or multimedia circuit ( (Not shown), sensor circuitry (not shown), display circuitry (not shown), and / or global positioning satellite (GPS) circuitry (not shown) may or may not be included. One or more can be combined.

  In various embodiments, the system 400 includes, but is not limited to, a server, workstation, desktop computing device, or mobile computing device (eg, a laptop computing device, a handheld computing device, a tablet, a netbook, Smartphone, game machine, etc.). In various embodiments, the system 400 may have some components and / or multiple different architectures. For example, in some embodiments, the system 400 includes a camera, keyboard, liquid crystal display (LCD) screen (including touch screen display), non-volatile memory port, multiple multiple antennas, graphics chips, application specific integrated circuits ( ASIC) and one or more of the speakers.

Example The first example is for multiple received UL / DL configurations, multiple downlink (DL) subframes and downlink pilot time slots (DwPTS) in a first uplink / downlink (UL / DL) configuration. ) Including a plurality of DL subframes in a radio frame and a plurality of subframes including DwPTS, and a plurality of subframes including at least one of the plurality of DL subframes and DwPTS A running DRX timer is incremented based on one of the frames, and at least one of the DL subframes and one of the subframes including DwPTS are transferred to a physical downlink control channel (PDCCH) Transmit or enhanced PDCCH (ePDCC H) a user equipment (UE) comprising a discontinuous reception (DRX) module that monitors for transmission, at least of a plurality of DL subframes and a plurality of subframes including DwPTS in a first UL / DL configuration One may include user equipment identified as a UL subframe in a radio frame based on a second UL / DL configuration in a plurality of received UL / DL configurations.

  Example 2 may include the UE described in Example 1 where the UE is a UE with enhanced interference mitigation and traffic adaptation (eIMTA) enabled.

  Example 3 may include a UE as described in Example 1 where the DRX timer is a DRX duration timer, a DRX inactivity timer, or a DRX retransmission timer.

  Example 4 shows the UL / DL configuration, radio resource control (RRC) signaling that the first or second UL / DL configuration is received by the UE in a System Information Block Type 1 (SIB1) message from the eNodeB (eNB). UL / DL configuration received by the UE in the PDCCH or ePDCCH message in the UL / DL configuration received by the UE via the first subframe or multiple subframes composed of higher layers of one radio frame The UE as described in Example 1 may be included.

  Example 5 is the UL / DL configuration where the first UL / DL configuration is received by the UE in the SIB1 message, and the multiple subframes including multiple DL subframes and DwPTS in the radio frame are in the SIB1 message. The UE described in Example 4 may be included, which are multiple subframes including multiple DL subframes and DwPTS in the multiple possible UL / DL configurations shown.

  Example 6 may include the UE of example 4 where the first UL / DL configuration is the UL / DL configuration indicated in the SIB1 message.

  Example 7 may include the UE of example 4 where the first UL / DL configuration is a second UL / DL configuration configured by RRC signaling.

  Example 8 shows the UL / DL configuration in which the first UL / DL configuration is received by the UE in a PDCCH or ePDCCH message in the first subframe of one radio frame or multiple subframes configured in higher layers. The UE described in Example 4 may be included.

  Example 9 may include a UE as described in any one of Examples 1-8, further comprising a display circuit coupled to the processor.

  Example 10 illustrates that upon execution of a plurality of instructions by one or more processors of a user equipment (UE), the UE can receive a plurality of uplink / downlink (UL / DL) configuration is specified, and a physical downlink control channel (PDCCH) or enhanced PDCCH (ePDCCH) message in a first subframe of a radio frame in a plurality of radio frames or a plurality of subframes configured in a higher layer Identifying the indicated UL / DL configuration applicable to a plurality of subframes in a radio frame received at a first one of the UL / DL configurations in a plurality of UL / DL configurations and the indicated UL Based on / DL configuration only, multiple DL subframes in a radio frame or A plurality of subframes including a downlink pilot time slot (DwPTS) are identified, and a running discontinuous reception (DRX) timer is determined based only on the plurality of identified DL subframes and the plurality of subframes including DwPTS. One or more non-transitory comprising a plurality of instructions configured to increment and monitor a plurality of identified DL subframes and a plurality of subframes including DwPTS for a PDCCH message while the DRX timer is running A plurality of DL subframes or a plurality of subframes including DwPTS may be computer readable media, and are UL subframes in a plurality of UL / DL configurations and a second one of the indicated UL / DL configurations.

  Example 11 illustrates one or more non-transitory computers of Example 10, wherein UL / DL configurations in multiple UL / DL configurations are received in a System Information Block Type 1 (SIB1) message from an eNodeB (eNB). A readable medium may be included.

  Example 12 includes multiple DL subframes and DwPTS, where the multiple instructions are further multiple subframes including multiple DL subframes or DwPTS in multiple possible UL / DL configurations indicated in the SIB1 message. One or more non-transitory computer readable media as described in Example 11 may be included that identify multiple subframes.

  Example 13 may include one or more non-transitory computer readable media as described in example 11, wherein the first one of the plurality of UL / DL configurations is a UL / DL configuration received in a SIB1 message.

  Example 14 is one or more non-transitory computer-readable media according to Example 11, wherein the first one of the plurality of UL / DL configurations is a UL / DL configuration indicated by radio resource control (RRC) signaling. May be included.

  Example 15 shows that in a PDCCH or ePDCCH message in a plurality of UL / DL configurations, a first subframe in a plurality of radio frames or a plurality of subframes configured in a higher layer of a radio frame One or more non-transitory computer readable media as described in Example 11 may be included, which is the illustrated UL / DL configuration.

  Example 16 includes one or more non-transitory computer readable media according to any one of Examples 10-15, wherein the DRX timer is a DRX duration timer, a DRX inactivity timer, or a DRX retransmission timer. Good.

  Example 17 includes one or more non-transitory computer readable media according to any one of Examples 10-15, wherein the UE is a UE with enhanced interference mitigation and traffic adaptation (eIMTA) enabled. It's okay.

  Example 18 includes receiving at a UE each indication of a plurality of uplink / downlink (UL / DL) configurations applicable to a plurality of subframes of a radio frame, and a first in a plurality of UL / DL configurations. Identifying, by the UE, a plurality of subframes including a plurality of DL subframes and a downlink pilot time slot (DwPTS) in a plurality of subframes of a radio frame based on only one UL / DL configuration; A physical downlink control channel (PDCCH) or an enhanced PDCCH (ePDCCH) between a phase initiated by the UE and a timer associated with the UE's DRX operation running. , Including multiple identified DL subframes and DwPTS Monitoring by the UE for messages only during subframes, and incrementing a plurality of DRX timers by the UE based only on a plurality of identified DL subframes and a plurality of subframes including DwPTS in a radio frame The plurality of identified DL subframes and the plurality of subframes including DwPTS are a plurality of UL subframes in a second UL / DL configuration of a plurality of UL / DL configurations. A method may be included.

  Example 19 may include the method of example 18, wherein the indication in each indication is received by the UE in a System Information Block Type 1 (SIB1) message from the eNodeB (eNB).

  Example 20 may include the method of example 19, further comprising identifying the first UL / DL configuration by the UE based solely on the indication received in the SIB1 message.

  Example 21 shows that the indication is the first indication, and the second indication of each indication is received by the UE via radio resource control (RRC) signaling, and the indication of each indication is The indication of 3 may include the method of example 19 received by the UE in a PDCCH or ePDCCH message in a first subframe or a plurality of subframes configured in higher layers of a radio frame.

  Example 22 illustrates: In a plurality of subframes of a radio frame, a plurality of subframes including a plurality of DL subframes and a DwPTS are transmitted by the UE based on only one of the second indication or the third indication. The method of Example 21, further comprising identifying.

  Example 23 may include the method according to any one of Examples 18-22, wherein the timer is a DRX duration timer, a DRX inactivity timer, or a DRX retransmission timer.

  Example 24 may include the method described in any one of Examples 18-22, wherein the UE is a UE with enhanced interference mitigation and traffic adaptation (eIMTA) enabled.

  Example 25 may include an apparatus comprising means for performing the method described in any one of Examples 18-24.

  Although specific embodiments have been illustrated and described herein for purposes of illustration, this application is intended to cover any modifications or variations of the embodiments discussed herein. Yes. Accordingly, it is manifestly intended that the embodiments described herein be limited only by the claims.

  Where this disclosure describes “one (a)” or “a first” element or equivalent thereof, such disclosure includes one or more such elements, but two Or do not require or exclude more such elements. In addition, ordinal indications (eg, first, second or third) for a plurality of identified elements are used to distinguish between the plurality of elements and indicate the required or limited number of such elements. It does not specify or suggest, nor does it indicate a particular position or order of such elements unless otherwise stated.

[item]
[Item 1] In multiple received UL / DL configurations, including multiple downlink (DL) subframes and downlink pilot time slots (DwPTS) in a first uplink / downlink (UL / DL) configuration A processor for identifying a plurality of subframes including a plurality of DL subframes and DwPTS in a radio frame based only on the plurality of subframes; a plurality of subframes including at least one of the plurality of DL subframes and DwPTS; A running DRX timer is incremented based on one of the plurality of DL subframes and at least one of the plurality of DL subframes and one of the plurality of subframes including DwPTS is transferred to a physical downlink control channel (PDCCH). Transmit or enhanced PDCCH (eP A user equipment (UE) comprising: a discontinuous reception (DRX) module that monitors for DCCH) transmission, wherein the plurality of DL subframes and the plurality of subframes including DwPTS in the first UL / DL configuration At least one of them is a user equipment identified as a UL subframe in the radio frame based on a second UL / DL configuration in the plurality of received UL / DL configurations.
[Item 2] The UE according to Item 1, wherein the UE is a UE with enhanced interference mitigation and traffic adaptation (eIMTA) enabled.
[Item 3] The UE according to Item 1, wherein the DRX timer is a DRX continuation timer, a DRX inactivity timer, or a DRX retransmission timer.
[Item 4] The first or second UL / DL configuration is the UL / DL configuration, radio resource control (RRC) received by the UE in the system information block type 1 (SIB1) message from the eNodeB (eNB). Received by the UE in a PDCCH or ePDCCH message in the UL / DL configuration received by the UE via signaling, or in multiple subframes composed of higher layers of the first subframe or one radio frame The UE according to item 1, which has a UL / DL configuration.
[Item 5] The first UL / DL configuration is the UL / DL configuration received by the UE in the SIB1 message, and includes a plurality of DL subframes and DwPTS in the radio frame. Item 5. The UE according to item 4, wherein the subframe is a plurality of DL subframes and a plurality of subframes including DwPTS in a plurality of possible UL / DL configurations indicated in the SIB1 message.
[Item 6] The UE according to Item 4, wherein the first UL / DL configuration is the UL / DL configuration indicated in the SIB1 message.
[Item 7] The UE according to Item 4, wherein the first UL / DL configuration is the second UL / DL configuration configured by RRC signaling.
[Item 8] The first UL / DL configuration may be received by the UE in the PDCCH or the ePDCCH message in a plurality of subframes configured in a first subframe or a higher layer of the radio frame. Item 5. The UE according to item 4, which is a UL / DL configuration.
[Item 9] The UE according to any one of Items 1-8, further comprising a display circuit coupled to the processor.
[Item 10] A plurality of uplink / downlink (UL) applicable to a plurality of subframes in a plurality of radio frames to the UE upon execution of a plurality of instructions by one or a plurality of processors of a user equipment (UE). / DL) configuration is specified, and in a first subframe of a radio frame in the plurality of radio frames or a plurality of subframes configured in a higher layer, a physical downlink control channel (PDCCH) or an extended PDCCH (ePDCCH) ) Identify the indicated UL / DL configuration received in the message and based only on the first one of the UL / DL configurations in the plurality of UL / DL configurations and the indicated UL / DL configuration A plurality of DL subframes or downlink pilot tags in the radio frame. Identifying a plurality of subframes including an imslot (DwPTS) and incrementing a running discontinuous reception (DRX) timer based only on the plurality of identified DL subframes and the plurality of subframes including DwPTS; One or more comprising a plurality of instructions configured to cause the plurality of identified DL subframes and a plurality of subframes including DwPTS to be monitored for a PDCCH message while the DRX timer is running A non-transitory computer readable medium, wherein the indicated UL / DL configuration is applicable to a plurality of subframes in the radio frame, wherein a plurality of subframes including the plurality of DL subframes or DwPTS are The plurality of UL / DL configurations and the UL / DL configurations indicated above. A UL subframe in the second one, one or more non-transitory computer readable media.
[Item 11] The UL / DL configuration in the plurality of UL / DL configurations is one or more non-transitory according to Item 10, which is received in a system information block type 1 (SIB1) message from an eNodeB (eNB). Computer readable medium.
[Item 12] The plurality of instructions are further a plurality of DL subframes including a plurality of DL subframes or a plurality of subframes including DwPTS in a plurality of possible UL / DL configurations indicated in the SIB1 message, and 12. One or more non-transitory computer readable media according to item 11, wherein the one or more non-transitory computer-readable media specify a plurality of subframes including DwPTS.
[Item 13] One or more non-transitory computer-readable media according to Item 11, wherein the first one of the plurality of UL / DL configurations is the UL / DL configuration received in the SIB1 message. .
[Item 14] The one or more non-temporary items according to Item 11, wherein the first one of the plurality of UL / DL configurations is a UL / DL configuration indicated by radio resource control (RRC) signaling. Computer readable medium.
[Item 15] Of the plurality of UL / DL configurations, the first one is the first subframe in the plurality of radio frames or a plurality of subframes configured in a higher layer of the radio frame. 12. One or more non-transitory computer readable media according to item 11, which is a UL / DL configuration indicated in the PDCCH or ePDCCH message.
[Item 16] The one or more non-transitory computer-readable media according to any one of Items 10 to 15, wherein the DRX timer is a DRX duration timer, a DRX inactivity timer, or a DRX retransmission timer.
[Item 17] The one or more non-transitory computer-readable media according to any one of Items 10-15, wherein the UE is a UE with enhanced interference mitigation and traffic adaptation (eIMTA) enabled. .
[Item 18] In the UE, receiving each indication of a plurality of uplink / downlink (UL / DL) configurations applicable to a plurality of subframes of a radio frame, and in the plurality of UL / DL configurations Based on only the first UL / DL configuration, the UE identifies a plurality of subframes including a plurality of DL subframes and a downlink pilot time slot (DwPTS) in the plurality of subframes of the radio frame. The plurality of identified DL subframes and the plurality of subframes including DwPTS are a plurality of UL subframes in a second UL / DL configuration in the plurality of UL / DL configurations. And a tag associated with the UE discontinuous reception (DRX) operation by the UE. A physical downlink control channel (PDCCH) or an enhanced PDCCH (ePDCCH) is transmitted between the plurality of identified DL subframes and the timer associated with the DRX operation of the UE. Only during a plurality of subframes including DwPTS, the UE monitors the message for the UE, and based on only the plurality of identified DL subframes and the plurality of subframes including DwPTS in the radio frame, the UE Incrementing a plurality of said DRX timers by:
[Item 19] The method according to item 18, wherein the indication in each of the indications is received by the UE in a system information block type 1 (SIB1) message from an eNodeB (eNB).
[Item 20] The method of item 19, further comprising identifying the first UL / DL configuration by the UE based solely on the indication received in the SIB1 message.
[Item 21] The indication is a first indication, and a second indication of the respective indication is received by the UE via radio resource control (RRC) signaling, and the indication of the respective indication. 23. The method of item 19, wherein a third indication of an action is received by the UE in a PDCCH or ePDCCH message in a plurality of subframes configured in a first subframe or a higher layer of the radio frame. .
[Item 22] In the plurality of subframes of the radio frame, a plurality of subframes including a plurality of DL subframes and a DwPTS are based on only one of the second indication and the third indication. The method according to item 21, further comprising the step of identifying by the UE.
[Item 23] The method according to any one of Items 18-22, wherein the timer is a DRX duration timer, a DRX inactivity timer, or a DRX retransmission timer.
[Item 24] The method according to any one of Items 18-22, wherein the UE is a UE with enhanced interference mitigation and traffic adaptation (eIMTA) enabled.
[Item 25] An apparatus comprising means for executing the method according to any one of Items 18-24.
[Request for amendment]
Received by the International Bureau on January 20, 2015 (2015.10.20).

Claims (24)

User equipment (UE),
In a physical downlink control channel (PDCCH) or enhanced PDCCH (ePDCCH) message received from a base station by one or more antennas of the UE, a plurality of time division multiplexing (TDD) uplink / downlink (UL / DL) ) Identify the first TDD UL / DL configuration index of the configuration ;
A transceiver identifying a second TDD UL / DL configuration indicator in a system information block type 1 (SIB1) message received from the base station by one or more antennas of the UE ;
A processor coupled to the transceiver;
The processor is
A subframe that is a DL subframe is identified based on the first TDD UL / DL configuration indicated by the PDCCH or ePDCCH message , and the subframe is the second TDD UL / DL indicated by the SIB1 message. A UL subframe of the configuration,
Monitoring said subframe P DCC H transmission credit transmitted by the base station,
UE. The processor further increments a running discontinuous reception (DRX) timer for a subframe indicated as a DL subframe based on the second TDD UL / DL configuration indicated by the SIB1 message.
The UE according to claim 1. The UE according to claim 1, wherein the transmission of the PDCCH is an enhanced PDCCH (ePDCCH) transmission. The UE according to any one of claims 1 to 3, wherein the first TDD UL / DL configuration is associated with enhanced interference mitigation and traffic adaptation (eIMTA) operation. The subframe, UE according to any one of claims 1 3 is a flow Rekishiburu subframe. The UE according to any one of claims 1 to 3, wherein the transmission of the PDCCH is related to a discontinuous reception (DRX) operation of the UE. When an instruction is executed by one or more processors of a user equipment (UE), the UE
In a physical downlink control channel (PDCCH) or enhanced PDCCH (ePDCCH) message received from a base station, a first TDD UL / of multiple time division multiplexing (TDD) uplink / downlink (UL / DL) configurations Identify the index of DL configuration,
In a system information block type 1 (SIB1) message received from the base station by one or more antennas of the UE, identify a second TDD UL / DL configuration indicator;
Based on the first TDD UL / DL configuration indicated by the PDCCH or ePDCCH message , a subframe that is a DL subframe is identified, and the subframe is specified by the second TDD UL / indicated by the SIB1 message. A DL sub-frame UL subframe,
Incrementing a running discontinuous reception (DRX) timer for a subframe indicated as a DL subframe based on the second TDD UL / DL configuration indicated by the SIB1 message;
Including instructions for monitoring said subframes transmitted P DCC H transmission credit by the base station,
program. The program according to claim 7, wherein the transmission of the PDCCH is an enhanced PDCCH (ePDCCH) transmission. The program according to claim 7 or 8 , wherein the first TDD UL / DL configuration is associated with enhanced interference mitigation and traffic adaptation (eIMTA) operation. The program according to claim 7 or 8 , wherein the monitoring is related to a discontinuous reception (DRX) operation of the UE. The subframe is a program according to claim 7 or 8 is a flow Rekishiburu subframe. Computer readable recording medium storing a program according to any one of claims 7 11. Multiple physical time division multiplexing (TDD) uplink / downlink (UL / DL) configurations in physical downlink control channel (PDCCH) or enhanced PDCCH (ePDCCH) messages received from a base station by a user equipment (UE) Identifying an indication of a first TDD UL / DL configuration of:
Identifying a second TDD UL / DL configuration indicator in the system information block type 1 (SIB1) message received by the UE from the base station via one or more antennas of the UE;
Identifying , by the UE, a subframe that is a DL subframe based on the first TDD UL / DL configuration indicated by the PDCCH or ePDCCH message , wherein the subframe is indicated by the SIB1 message A UL subframe of the second TDD UL / DL configuration ;
Wherein the UE, Ru and a step of monitoring the P DCC H feeding the subframe credit transmitted by the base station,
Method. Further comprising incrementing a running discontinuous reception (DRX) timer for a subframe indicated as a DL subframe based on the second TDD UL / DL configuration indicated by the SIB1 message;
The method of claim 13 . The method according to claim 13 , wherein the transmission of the PDCCH is an enhanced PDCCH (ePDCCH) transmission. The method according to any one of claims 13 to 15 , wherein the first TDD UL / DL configuration is associated with enhanced interference mitigation and traffic adaptation (eIMTA) operation. The method according to any one of claims 13 to 15 , wherein the monitoring is related to a discontinuous reception (DRX) operation of the UE. The subframe A method according to any one of claims 13 to 15 is a flow Rekishiburu subframe. In a physical downlink control channel (PDCCH) or enhanced PDCCH (ePDCCH) message received from a base station, a first TDD UL / of multiple time division multiplexing (TDD) uplink / downlink (UL / DL) configurations Means for identifying an index of DL configuration;
Means for identifying a second TDD UL / DL configuration indicator in a system information block type 1 (SIB1) message received from the base station by one or more antennas of the UE;
Means for identifying a subframe that is a DL subframe based on the first TDD UL / DL configuration indicated by the PDCCH or ePDCCH message , wherein the subframe is the second indicated by the SIB1 message; Means being a UL subframe of TDD UL / DL configuration ;
Ru and means for monitoring the subframe P DCC H transmission credit transmitted by the base station,
apparatus. Means for incrementing a running discontinuous reception (DRX) timer for a subframe indicated as a DL subframe based on the second TDD UL / DL configuration indicated by the SIB1 message;
The apparatus of claim 19 . The apparatus according to claim 19 , wherein the transmission of the PDCCH is an enhanced PDCCH (ePDCCH) transmission. The apparatus according to any one of claims 19 to 21 , wherein the first TDD UL / DL configuration is associated with enhanced interference mitigation and traffic adaptation (eIMTA) operation. The apparatus according to any one of claims 19 to 21 , wherein the monitoring is related to a discontinuous reception (DRX) operation of the apparatus. It said subframe, apparatus according to any one of claims 19 to 21 is a flow Rekishiburu subframe.